Lots of time we expect something bad to happen and then it doesn’t, it surely gives us a positive feeling. A previous study has shown that Ppp1r1b are reward expressing neurons and compete with different Rspo2 neurons that are negative expressing neurons. A new study of fear extinction training in mice has succeeded to identify the exact population of brain cells that are important for learning not to feel afraid and also revealed that these neurons also help to provide feelings of reward. The study provides potential remedial targets for treating fear disorders like post-traumatic stress disorder and anxiety.
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